Japan Atomic Energy Agency and The Federation of Electric Power Companies of Japan (March 2007)
In order to promote the establishment of a regulatory framework and the implementation of TRU waste disposal, the Federation of Electric Power Companies of Japan (FEPC) and the Japan Nuclear Cycle Development Institute (now JAEA) collaborated and published a progress report in Japanese (hereafter TRU-2) in September 2005. The report here is an English version of TRU-2 and has been published to widely inform overseas researchers and engineers of the contents of TRU-2.
In this report, the characteristics of TRU waste generated from the nuclear fuel cycle in Japan and its disposal concept are shown. The design of the TRU waste disposal facility was evaluated and safety assessments were carried out to show that safety could be validated by comparing with regulatory guidelines in overseas performance assessment reports. Alternative technologies were developed to deal with various geological environments and to improve safety margins in addition to evaluating other disposal concepts. Furthermore, optimisation through co-location disposal of TRU waste and high level radioactive waste was investigated, and an example layout of a co-location disposal concept was evaluated. Based on these evaluation results, future issues and outstanding items on research and development for TRU waste disposal are summarised.
* JAEA and FEPC equally contributed to this report.
CONTENTS - Click on a chapter title to see/download the contents.
- Executive Summary
- Chapter 1 Introduction
- Chapter 2 Generation and characteristics of TRU waste
- Chapter 3 Repository design and engineering technology
- Chapter 4 Evaluating the safety of geological disposal
- Chapter 5 Outline of the disposal system and safety assessment for concrete vault disposal and intermediate-depth disposal
- Chapter 6 Evaluation aimed at optimizing waste disposal
- Chapter 7 Evaluation of alternative technologies for the TRU waste disposal facility
- Chapter 8 Conclusions and future R&D requirements